.HEAD 0 +  Weights and Measures
.HEAD 1 +  U.S. Area
.HEAD 2 +  1 square inch
.HEAD 3 -  .007 square foot
.HEAD 3 -  6.452 square centimeters
.HEAD 2 +  1 square foot
.HEAD 3 -  144 square inches
.HEAD 3 -  929.0 square centimeters
.HEAD 2 +  1 square yard
.HEAD 3 -  1,296 square inches
.HEAD 3 -  9 square feet
.HEAD 3 -  .836 square meter
.HEAD 2 +  1 acre
.HEAD 3 -  43,560 square feet
.HEAD 3 -  4,480 square yards
.HEAD 3 -  4,047 square meters
.HEAD 2 +  1 square mile
.HEAD 3 -  640 acres
.HEAD 3 -  2,590 square kilometers
.HEAD 1 +  U.S. Dry measure
.HEAD 2 +  1 pint
.HEAD 3 -  .5 quart
.HEAD 3 -  33.6 cubic inches
.HEAD 3 -  .551 liter
.HEAD 2 +  1 quart
.HEAD 3 -  2 pints
.HEAD 3 -  67.2 cubic inches
.HEAD 3 -  1.101 liters
.HEAD 2 +  1 peck
.HEAD 3 -  8 quarts
.HEAD 3 -  537.6 cubic inches
.HEAD 3 -  8.810 liters
.HEAD 2 +  1 bushel
.HEAD 3 -  4 pecks
.HEAD 3 -  2,150.42 cubic inches
.HEAD 3 -  35.238 liters
.HEAD 1 +  U.S. Length
.HEAD 2 +  1 inch
.HEAD 3 -  .083 foot
.HEAD 3 -  2.54 centimeters
.HEAD 2 +  1 foot 
.HEAD 3 -  12 inches
.HEAD 3 -  .3048 meters
.HEAD 2 +  1 yard 
.HEAD 3 -  3 feet
.HEAD 3 -  36 inches
.HEAD 3 -  .9144 meters
.HEAD 2 +  1 rod
.HEAD 3 -  5.5 yards
.HEAD 3 -  16.5 feet
.HEAD 3 -  5.029 meters
.HEAD 2 +  1 mile, land
.HEAD 3 -  1,760 yards
.HEAD 3 -  5,280 feet
.HEAD 3 -  1.609 kilometers
.HEAD 2 +  1 mile, nautical
.HEAD 3 -  1.51 land miles
.HEAD 3 -  1.852 kilometers
.HEAD 1 +  U.S. Liquid measure
.HEAD 2 +  1 fluid ounce
.HEAD 3 -  8 fluid drams
.HEAD 3 -  1.804 cubic inches
.HEAD 3 -  29.57 milliliters
.HEAD 2 +  1 pint
.HEAD 3 -  16 fluid ounces
.HEAD 3 -  28.875 cubic inches
.HEAD 3 -  .473 liter
.HEAD 2 +  1 quart
.HEAD 3 -  2 pints
.HEAD 3 -  57.75 cubic inches
.HEAD 3 -  .946 liter
.HEAD 2 +  1 gallon
.HEAD 3 -  4 quarts
.HEAD 3 -  231 cubic inches
.HEAD 3 -  3.785 liters
.HEAD 1 +  U.S. Volume
.HEAD 2 +  1 cubic inch
.HEAD 3 -  .00058 cubic foot
.HEAD 3 -  16.387 cubic centimeters
.HEAD 2 +  1 cubic foot
.HEAD 3 -  1,728 cubic inches
.HEAD 3 -  .028 cubic meter
.HEAD 2 +  1 cubic yard
.HEAD 3 -  27 cubic feet
.HEAD 3 -  .765 cubic meter
.HEAD 1 +  U.S. Weight
.HEAD 2 +  1 grain
.HEAD 3 -  .036 dram
.HEAD 3 -  .00229 ounce
.HEAD 3 -  64.799 milligrams
.HEAD 2 +  1 dram
.HEAD 3 -  27.344 grains
.HEAD 3 -  .0625 ounce
.HEAD 3 -  1.772 grams
.HEAD 2 +  1 ounce
.HEAD 3 -  16 drams
.HEAD 3 -  437.5 grains
.HEAD 3 -  28.35 grams
.HEAD 2 +  1 pound
.HEAD 3 -  16 ounces
.HEAD 3 -  7,000 grains
.HEAD 3 -  453.59 grams
.HEAD 2 +  1 short ton
.HEAD 3 -  2,000 pounds
.HEAD 3 -  .907 metric ton
.HEAD 2 +  1 long ton
.HEAD 3 -  1.12 short tons
.HEAD 3 -  2,240 pounds
.HEAD 3 -  1.016 metric ton
HEAD 3 -  .00229 ounce
.HEAD 3 -  64.799 milligrams
.HEAD 2 +  1 dram
.HEAD 3 -  27.344 grains
.HEAD 3 -  .0625 ounce
.HEAD 3 -  1.772 grams
.HEAD 2 +  1 ounce
.HEAD 3 -  16 drams
.HEAD 3 -  437.5 grains
.HEAD 3 -  28.35 grams
.HEAD 2 +  1 pound
.HEAD 3 -  16 ounces
.HEAD 3 -